Adam Pash

The Google Operating System blog describes a method for running Internet Explorer 7 alongside IE6 without having to install it.

After extracting IE7 from the setup program, the method uses a batch file that takes care of any registry keys needed to run the program, then automatically cleans them up when you shut down the program. If you've been dying to try the new features that IE7 has to offer, this very cool method should do the trick.